154869009156 has 45 divisors (see below), whose sum is σ = 404876700151. Its totient is φ = 51620641848.

The previous prime is 154869009151. The next prime is 154869009259. The reversal of 154869009156 is 651900968451.

The square root of 154869009156 is 393534.

It is a perfect power (a square), and thus also a powerful number.

154869009156 is a `hidden beast` number, since 1 + 5 + 486 + 9 + 0 + 0 + 9 + 156 = 666.

It is a super-2 number, since 2×154869009156² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154869009151) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 7072681 + ... + 7094543.

Almost surely, 2^154869009156 is an apocalyptic number.

154869009156 is the 393534-th square number.

It is an amenable number.

154869009156 is an abundant number, since it is smaller than the sum of its proper divisors (250007690995).

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

154869009156 is an frugal number, since it uses more digits than its factorization.

154869009156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43742 (or 21868 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 54.

The spelling of 154869009156 in words is "one hundred fifty-four billion, eight hundred sixty-nine million, nine thousand, one hundred fifty-six".