1155005402 has 16 divisors (see below), whose sum is σ = 1824802560. Its totient is φ = 546774912.

The previous prime is 1155005399. The next prime is 1155005407. The reversal of 1155005402 is 2045005511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1155005407) 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, 60938 + ... + 77610.

It is an arithmetic number, because the mean of its divisors is an integer number (114050160).

Almost surely, 2^1155005402 is an apocalyptic number.

1155005402 is a deficient number, since it is larger than the sum of its proper divisors (669797158).

1155005402 is a wasteful number, since it uses less digits than its factorization.

1155005402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18517.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 1155005402 is about 33985.3704113991. The cubic root of 1155005402 is about 1049.2073842912.

The spelling of 1155005402 in words is "one billion, one hundred fifty-five million, five thousand, four hundred two".