1521472407 has 16 divisors (see below), whose sum is σ = 2496775680. Its totient is φ = 802534752.

The previous prime is 1521472361. The next prime is 1521472417. The reversal of 1521472407 is 7042741251.

It is not a de Polignac number, because 1521472407 - 2¹⁰ = 1521471383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1521472417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2786307 + ... + 2786852.

It is an arithmetic number, because the mean of its divisors is an integer number (156048480).

Almost surely, 2^1521472407 is an apocalyptic number.

1521472407 is a deficient number, since it is larger than the sum of its proper divisors (975303273).

1521472407 is a wasteful number, since it uses less digits than its factorization.

1521472407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5573182.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 1521472407 is about 39006.0560298013. The cubic root of 1521472407 is about 1150.1505554620.

The spelling of 1521472407 in words is "one billion, five hundred twenty-one million, four hundred seventy-two thousand, four hundred seven".