155129390 has 16 divisors (see below), whose sum is σ = 300712608. Its totient is φ = 57278496.

The previous prime is 155129383. The next prime is 155129431. The reversal of 155129390 is 93921551.

It is a self number, because there is not a number n which added to its sum of digits gives 155129390.

It is a congruent number.

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, 596522 + ... + 596781.

It is an arithmetic number, because the mean of its divisors is an integer number (18794538).

Almost surely, 2^155129390 is an apocalyptic number.

155129390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155129390 is a deficient number, since it is larger than the sum of its proper divisors (145583218).

155129390 is a wasteful number, since it uses less digits than its factorization.

155129390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193323.

The product of its (nonzero) digits is 12150, while the sum is 35.

The square root of 155129390 is about 12455.0949414286. The cubic root of 155129390 is about 537.3179653991.

The spelling of 155129390 in words is "one hundred fifty-five million, one hundred twenty-nine thousand, three hundred ninety".