1012154402 has 16 divisors (see below), whose sum is σ = 1791094272. Its totient is φ = 419787360.

The previous prime is 1012154401. The next prime is 1012154411. The reversal of 1012154402 is 2044512101.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1012154401) 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, 1165643 + ... + 1166510.

It is an arithmetic number, because the mean of its divisors is an integer number (111943392).

Almost surely, 2^1012154402 is an apocalyptic number.

1012154402 is a deficient number, since it is larger than the sum of its proper divisors (778939870).

1012154402 is a wasteful number, since it uses less digits than its factorization.

1012154402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332193.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1012154402 is about 31814.3741412589. The cubic root of 1012154402 is about 1004.0351628929.

Adding to 1012154402 its reverse (2044512101), we get a palindrome (3056666503).

The spelling of 1012154402 in words is "one billion, twelve million, one hundred fifty-four thousand, four hundred two".