155292945 has 8 divisors (see below), whose sum is σ = 248468736. Its totient is φ = 82822896.

The previous prime is 155292923. The next prime is 155292983. The reversal of 155292945 is 549292551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155292945 - 2⁵ = 155292913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155292897 and 155292906.

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, 5176417 + ... + 5176446.

It is an arithmetic number, because the mean of its divisors is an integer number (31058592).

Almost surely, 2^155292945 is an apocalyptic number.

155292945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155292945 is a deficient number, since it is larger than the sum of its proper divisors (93175791).

155292945 is a wasteful number, since it uses less digits than its factorization.

155292945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10352871.

The product of its digits is 162000, while the sum is 42.

The square root of 155292945 is about 12461.6589987048. The cubic root of 155292945 is about 537.5067329245.

The spelling of 155292945 in words is "one hundred fifty-five million, two hundred ninety-two thousand, nine hundred forty-five".