1521472427 has 2 divisors, whose sum is σ = 1521472428. Its totient is φ = 1521472426.

The previous prime is 1521472417. The next prime is 1521472441. The reversal of 1521472427 is 7242741251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1521472427 - 2²² = 1517278123 is a prime.

It is a super-2 number, since 2×1521472427² = 4629756692242540658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1521472417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 760736213 + 760736214.

It is an arithmetic number, because the mean of its divisors is an integer number (760736214).

Almost surely, 2^1521472427 is an apocalyptic number.

1521472427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1521472427 is an equidigital number, since it uses as much as digits as its factorization.

1521472427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31360, while the sum is 35.

The square root of 1521472427 is about 39006.0562861718. The cubic root of 1521472427 is about 1150.1505605017.

The spelling of 1521472427 in words is "one billion, five hundred twenty-one million, four hundred seventy-two thousand, four hundred twenty-seven".