154012020 has 24 divisors (see below), whose sum is σ = 431233824. Its totient is φ = 41069856.

The previous prime is 154012013. The next prime is 154012021. The reversal of 154012020 is 20210451.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154012021) 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, 1283374 + ... + 1283493.

It is an arithmetic number, because the mean of its divisors is an integer number (17968076).

Almost surely, 2^154012020 is an apocalyptic number.

154012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154012020 is an abundant number, since it is smaller than the sum of its proper divisors (277221804).

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

154012020 is a wasteful number, since it uses less digits than its factorization.

154012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566879 (or 2566877 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 154012020 is about 12410.1579361425. The cubic root of 154012020 is about 536.0247862972.

Adding to 154012020 its reverse (20210451), we get a palindrome (174222471).

The spelling of 154012020 in words is "one hundred fifty-four million, twelve thousand, twenty".