154133420 has 36 divisors (see below), whose sum is σ = 376528320. Its totient is φ = 52845408.

The previous prime is 154133383. The next prime is 154133431. The reversal of 154133420 is 24331451.

It is a super-2 number, since 2×154133420² = 47514222321792800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77660 + ... + 79619.

It is an arithmetic number, because the mean of its divisors is an integer number (10459120).

Almost surely, 2^154133420 is an apocalyptic number.

154133420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154133420 is an abundant number, since it is smaller than the sum of its proper divisors (222394900).

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

154133420 is a wasteful number, since it uses less digits than its factorization.

154133420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157302 (or 157293 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 154133420 is about 12415.0481271721. The cubic root of 154133420 is about 536.1655898494.

Adding to 154133420 its reverse (24331451), we get a palindrome (178464871).

The spelling of 154133420 in words is "one hundred fifty-four million, one hundred thirty-three thousand, four hundred twenty".