155277130 has 32 divisors (see below), whose sum is σ = 283046400. Its totient is φ = 61328832.

The previous prime is 155277103. The next prime is 155277137. The reversal of 155277130 is 31772551.

It is a super-2 number, since 2×155277130² = 48221974202073800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155277092 and 155277101.

It is not an unprimeable number, because it can be changed into a prime (155277137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398976 + ... + 399364.

It is an arithmetic number, because the mean of its divisors is an integer number (8845200).

Almost surely, 2^155277130 is an apocalyptic number.

155277130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155277130 is a deficient number, since it is larger than the sum of its proper divisors (127769270).

155277130 is a wasteful number, since it uses less digits than its factorization.

155277130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 155277130 is about 12461.0244362171. The cubic root of 155277130 is about 537.4884857818.

The spelling of 155277130 in words is "one hundred fifty-five million, two hundred seventy-seven thousand, one hundred thirty".