1532123431 has 2 divisors, whose sum is σ = 1532123432. Its totient is φ = 1532123430.

The previous prime is 1532123401. The next prime is 1532123473. The reversal of 1532123431 is 1343212351.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1532123431 - 2⁵ = 1532123399 is a prime.

It is a super-2 number, since 2×1532123431² = 4694804415638423522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1532123396 and 1532123405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1532123401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766061715 + 766061716.

It is an arithmetic number, because the mean of its divisors is an integer number (766061716).

Almost surely, 2^1532123431 is an apocalyptic number.

1532123431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1532123431 is an equidigital number, since it uses as much as digits as its factorization.

1532123431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 1532123431 is about 39142.3483071724. The cubic root of 1532123431 is about 1152.8281822702.

Adding to 1532123431 its reverse (1343212351), we get a palindrome (2875335782).

The spelling of 1532123431 in words is "one billion, five hundred thirty-two million, one hundred twenty-three thousand, four hundred thirty-one".