1245413131 has 8 divisors (see below), whose sum is σ = 1303293600. Its totient is φ = 1187843712.

The previous prime is 1245413129. The next prime is 1245413137. The reversal of 1245413131 is 1313145421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1245413131 - 2¹ = 1245413129 is a prime.

It is a super-2 number, since 2×1245413131² = 3102107733734446322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1245413096 and 1245413105.

It is not an unprimeable number, because it can be changed into a prime (1245413137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69550 + ... + 85603.

It is an arithmetic number, because the mean of its divisors is an integer number (162911700).

Almost surely, 2^1245413131 is an apocalyptic number.

1245413131 is a deficient number, since it is larger than the sum of its proper divisors (57880469).

1245413131 is a wasteful number, since it uses less digits than its factorization.

1245413131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155525.

The product of its digits is 1440, while the sum is 25.

The square root of 1245413131 is about 35290.4113180904. The cubic root of 1245413131 is about 1075.8981154365.

Adding to 1245413131 its reverse (1313145421), we get a palindrome (2558558552).

The spelling of 1245413131 in words is "one billion, two hundred forty-five million, four hundred thirteen thousand, one hundred thirty-one".