154664540 has 24 divisors (see below), whose sum is σ = 335996640. Its totient is φ = 59732288.

The previous prime is 154664519. The next prime is 154664567. The reversal of 154664540 is 45466451.

It is a super-2 number, since 2×154664540² = 47842239866823200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 154664540.

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, 132752 + ... + 133911.

It is an arithmetic number, because the mean of its divisors is an integer number (13999860).

Almost surely, 2^154664540 is an apocalyptic number.

154664540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154664540 is an abundant number, since it is smaller than the sum of its proper divisors (181332100).

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

154664540 is a wasteful number, since it uses less digits than its factorization.

154664540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266701 (or 266699 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 154664540 is about 12436.4199028499. The cubic root of 154664540 is about 536.7807318124.

The spelling of 154664540 in words is "one hundred fifty-four million, six hundred sixty-four thousand, five hundred forty".