97072149 has 8 divisors (see below), whose sum is σ = 129967552. Its totient is φ = 64445760.

The previous prime is 97072111. The next prime is 97072163. The reversal of 97072149 is 94127079.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97072149 - 2¹⁵ = 97039381 is a prime.

It is a super-2 number, since 2×97072149² = 18846004222956402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97072109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66409 + ... + 67854.

It is an arithmetic number, because the mean of its divisors is an integer number (16245944).

Almost surely, 2^97072149 is an apocalyptic number.

It is an amenable number.

97072149 is a deficient number, since it is larger than the sum of its proper divisors (32895403).

97072149 is a wasteful number, since it uses less digits than its factorization.

97072149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134507.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 97072149 is about 9852.5199314693. The cubic root of 97072149 is about 459.5839795704.

The spelling of 97072149 in words is "ninety-seven million, seventy-two thousand, one hundred forty-nine".