1215402 has 8 divisors (see below), whose sum is σ = 2430816. Its totient is φ = 405132.

The previous prime is 1215397. The next prime is 1215407. The reversal of 1215402 is 2045121.

It is an interprime number because it is at equal distance from previous prime (1215397) and next prime (1215407).

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

1215402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1215407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101278 + ... + 101289.

It is an arithmetic number, because the mean of its divisors is an integer number (303852).

2^1215402 is an apocalyptic number.

1215402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1215402 is a wasteful number, since it uses less digits than its factorization.

1215402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202572.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1215402 is about 1102.4527200747. The cubic root of 1215402 is about 106.7185663235.

The spelling of 1215402 in words is "one million, two hundred fifteen thousand, four hundred two".