155426745 has 24 divisors (see below), whose sum is σ = 262469376. Its totient is φ = 78528672.

The previous prime is 155426741. The next prime is 155426753. The reversal of 155426745 is 547624551.

It is not a de Polignac number, because 155426745 - 2² = 155426741 is a prime.

It is a super-2 number, since 2×155426745² = 48314946122590050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155426741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8937 + ... + 19766.

It is an arithmetic number, because the mean of its divisors is an integer number (10936224).

Almost surely, 2^155426745 is an apocalyptic number.

155426745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155426745 is a deficient number, since it is larger than the sum of its proper divisors (107042631).

155426745 is a wasteful number, since it uses less digits than its factorization.

155426745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28749 (or 28730 counting only the distinct ones).

The product of its digits is 168000, while the sum is 39.

The square root of 155426745 is about 12467.0263094292. The cubic root of 155426745 is about 537.6610600809.

The spelling of 155426745 in words is "one hundred fifty-five million, four hundred twenty-six thousand, seven hundred forty-five".