155274434 has 12 divisors (see below), whose sum is σ = 270938214. Its totient is φ = 66546144.

The previous prime is 155274401. The next prime is 155274467. The reversal of 155274434 is 434472551.

It is an interprime number because it is at equal distance from previous prime (155274401) and next prime (155274467).

It can be written as a sum of positive squares in only one way, i.e., 145130209 + 10144225 = 12047^2 + 3185^2 .

It is a super-2 number, since 2×155274434² = 48220299708040712, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 155274394 and 155274403.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 792119 + ... + 792314.

Almost surely, 2^155274434 is an apocalyptic number.

155274434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

155274434 is a deficient number, since it is larger than the sum of its proper divisors (115663780).

155274434 is a wasteful number, since it uses less digits than its factorization.

155274434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584449 (or 1584442 counting only the distinct ones).

The product of its digits is 67200, while the sum is 35.

The square root of 155274434 is about 12460.9162584458. The cubic root of 155274434 is about 537.4853750483.

The spelling of 155274434 in words is "one hundred fifty-five million, two hundred seventy-four thousand, four hundred thirty-four".