155036890 has 16 divisors (see below), whose sum is σ = 288069120. Its totient is φ = 60014160.

The previous prime is 155036873. The next prime is 155036897. The reversal of 155036890 is 98630551.

It is not an unprimeable number, because it can be changed into a prime (155036897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249750 + ... + 250369.

It is an arithmetic number, because the mean of its divisors is an integer number (18004320).

Almost surely, 2^155036890 is an apocalyptic number.

155036890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155036890 is a deficient number, since it is larger than the sum of its proper divisors (133032230).

155036890 is a wasteful number, since it uses less digits than its factorization.

155036890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500157.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 155036890 is about 12451.3810478999. The cubic root of 155036890 is about 537.2111474846.

The spelling of 155036890 in words is "one hundred fifty-five million, thirty-six thousand, eight hundred ninety".