154521464 has 8 divisors (see below), whose sum is σ = 289727760. Its totient is φ = 77260728.

The previous prime is 154521463. The next prime is 154521469. The reversal of 154521464 is 464125451.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 154521464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154521463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9657584 + ... + 9657599.

It is an arithmetic number, because the mean of its divisors is an integer number (36215970).

Almost surely, 2^154521464 is an apocalyptic number.

It is an amenable number.

154521464 is a deficient number, since it is larger than the sum of its proper divisors (135206296).

154521464 is a wasteful number, since it uses less digits than its factorization.

154521464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19315189 (or 19315185 counting only the distinct ones).

The product of its digits is 19200, while the sum is 32.

The square root of 154521464 is about 12430.6662733741. Note that the first 3 decimals coincide. The cubic root of 154521464 is about 536.6151602811.

The spelling of 154521464 in words is "one hundred fifty-four million, five hundred twenty-one thousand, four hundred sixty-four".