1231496973 has 64 divisors (see below), whose sum is σ = 2119680000. Its totient is φ = 692157312.

The previous prime is 1231496971. The next prime is 1231497013. The reversal of 1231496973 is 3796941321.

It is not a de Polignac number, because 1231496973 - 2¹ = 1231496971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231496971) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5152588 + ... + 5152826.

It is an arithmetic number, because the mean of its divisors is an integer number (33120000).

Almost surely, 2^1231496973 is an apocalyptic number.

It is an amenable number.

1231496973 is a deficient number, since it is larger than the sum of its proper divisors (888183027).

1231496973 is a wasteful number, since it uses less digits than its factorization.

1231496973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591 (or 585 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 1231496973 is about 35092.6911621209. The cubic root of 1231496973 is about 1071.8757597742.

The spelling of 1231496973 in words is "one billion, two hundred thirty-one million, four hundred ninety-six thousand, nine hundred seventy-three".