1245451432 has 32 divisors (see below), whose sum is σ = 2375654400. Its totient is φ = 612016704.

The previous prime is 1245451421. The next prime is 1245451469. The reversal of 1245451432 is 2341545421.

It is a super-2 number, since 2×1245451432² = 3102298538941701248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1245451394 and 1245451403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136518 + ... + 145354.

It is an arithmetic number, because the mean of its divisors is an integer number (74239200).

Almost surely, 2^1245451432 is an apocalyptic number.

It is an amenable number.

1245451432 is a deficient number, since it is larger than the sum of its proper divisors (1130202968).

1245451432 is a wasteful number, since it uses less digits than its factorization.

1245451432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9145 (or 9141 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 1245451432 is about 35290.9539684039. The cubic root of 1245451432 is about 1075.9091445883.

Adding to 1245451432 its reverse (2341545421), we get a palindrome (3586996853).

The spelling of 1245451432 in words is "one billion, two hundred forty-five million, four hundred fifty-one thousand, four hundred thirty-two".