151305261 has 16 divisors (see below), whose sum is σ = 207381504. Its totient is φ = 98071344.

The previous prime is 151305241. The next prime is 151305289. The reversal of 151305261 is 162503151.

It is not a de Polignac number, because 151305261 - 2⁶ = 151305197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151305221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26700 + ... + 31866.

It is an arithmetic number, because the mean of its divisors is an integer number (12961344).

Almost surely, 2^151305261 is an apocalyptic number.

It is an amenable number.

151305261 is a deficient number, since it is larger than the sum of its proper divisors (56076243).

151305261 is a wasteful number, since it uses less digits than its factorization.

151305261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5440.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 151305261 is about 12300.6203502100. The cubic root of 151305261 is about 532.8659989068.

The spelling of 151305261 in words is "one hundred fifty-one million, three hundred five thousand, two hundred sixty-one".