245155131 has 12 divisors (see below), whose sum is σ = 381352608. Its totient is φ = 150864624.

The previous prime is 245155129. The next prime is 245155133. The reversal of 245155131 is 131551542.

It is an interprime number because it is at equal distance from previous prime (245155129) and next prime (245155133).

It is not a de Polignac number, because 245155131 - 2¹ = 245155129 is a prime.

It is a super-2 number, since 2×245155131² = 120202076511254322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245155095 and 245155104.

It is not an unprimeable number, because it can be changed into a prime (245155133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1047555 + ... + 1047788.

It is an arithmetic number, because the mean of its divisors is an integer number (31779384).

Almost surely, 2^245155131 is an apocalyptic number.

245155131 is a deficient number, since it is larger than the sum of its proper divisors (136197477).

245155131 is a wasteful number, since it uses less digits than its factorization.

245155131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095362 (or 2095359 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 245155131 is about 15657.4305363300. The cubic root of 245155131 is about 625.8645154163.

It can be divided in two parts, 24515 and 5131, that added together give a triangular number (29646 = T₂₄₃).

The spelling of 245155131 in words is "two hundred forty-five million, one hundred fifty-five thousand, one hundred thirty-one".