20150154 has 16 divisors (see below), whose sum is σ = 44778240. Its totient is φ = 6716700.

The previous prime is 20150153. The next prime is 20150161. The reversal of 20150154 is 45105102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (20150153) 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, 186522 + ... + 186629.

It is an arithmetic number, because the mean of its divisors is an integer number (2798640).

Almost surely, 2^20150154 is an apocalyptic number.

20150154 is an abundant number, since it is smaller than the sum of its proper divisors (24628086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20150154 is a wasteful number, since it uses less digits than its factorization.

20150154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373162 (or 373156 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 20150154 is about 4488.8922909778. The cubic root of 20150154 is about 272.1193698232.

Adding to 20150154 its reverse (45105102), we get a palindrome (65255256).

The spelling of 20150154 in words is "twenty million, one hundred fifty thousand, one hundred fifty-four".