155486738 has 16 divisors (see below), whose sum is σ = 257294880. Its totient is φ = 69880800.

The previous prime is 155486711. The next prime is 155486741. The reversal of 155486738 is 837684551.

It is a super-2 number, since 2×155486738² = 48352251387761288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155486692 and 155486701.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37748 + ... + 41663.

It is an arithmetic number, because the mean of its divisors is an integer number (16080930).

Almost surely, 2^155486738 is an apocalyptic number.

155486738 is a deficient number, since it is larger than the sum of its proper divisors (101808142).

155486738 is a wasteful number, since it uses less digits than its factorization.

155486738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79513.

The product of its digits is 806400, while the sum is 47.

The square root of 155486738 is about 12469.4321442478. The cubic root of 155486738 is about 537.7302282513.

The spelling of 155486738 in words is "one hundred fifty-five million, four hundred eighty-six thousand, seven hundred thirty-eight".