245114221531 has 4 divisors (see below), whose sum is σ = 245115228232. Its totient is φ = 245113214832.

The previous prime is 245114221487. The next prime is 245114221559. The reversal of 245114221531 is 135122411542.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 135122411542 = 2 ⋅67561205771.

It is a cyclic number.

It is not a de Polignac number, because 245114221531 - 2¹³ = 245114213339 is a prime.

It is a super-2 number, since 2×245114221531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245114221493 and 245114221502.

It is not an unprimeable number, because it can be changed into a prime (245114221571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115456 + ... + 709618.

It is an arithmetic number, because the mean of its divisors is an integer number (61278807058).

Almost surely, 2^245114221531 is an apocalyptic number.

245114221531 is a deficient number, since it is larger than the sum of its proper divisors (1006701).

245114221531 is an equidigital number, since it uses as much as digits as its factorization.

245114221531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006700.

The product of its digits is 9600, while the sum is 31.

The spelling of 245114221531 in words is "two hundred forty-five billion, one hundred fourteen million, two hundred twenty-one thousand, five hundred thirty-one".