155251030 has 32 divisors (see below), whose sum is σ = 306125568. Its totient is φ = 56220000.

The previous prime is 155251013. The next prime is 155251043. The reversal of 155251030 is 30152551.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 155250992 and 155251010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24799 + ... + 30421.

It is an arithmetic number, because the mean of its divisors is an integer number (9566424).

Almost surely, 2^155251030 is an apocalyptic number.

155251030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155251030 is a deficient number, since it is larger than the sum of its proper divisors (150874538).

155251030 is a wasteful number, since it uses less digits than its factorization.

155251030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5892.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 155251030 is about 12459.9771267848. The cubic root of 155251030 is about 537.4583692293.

The spelling of 155251030 in words is "one hundred fifty-five million, two hundred fifty-one thousand, thirty".