345151031 has 2 divisors, whose sum is σ = 345151032. Its totient is φ = 345151030.

The previous prime is 345151021. The next prime is 345151049. The reversal of 345151031 is 130151543.

It is a weak prime.

It is an emirp because it is prime and its reverse (130151543) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345151031 is a prime.

It is a super-2 number, since 2×345151031² = 238258468400725922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 345150988 and 345151006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345151021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172575515 + 172575516.

It is an arithmetic number, because the mean of its divisors is an integer number (172575516).

Almost surely, 2^345151031 is an apocalyptic number.

345151031 is a deficient number, since it is larger than the sum of its proper divisors (1).

345151031 is an equidigital number, since it uses as much as digits as its factorization.

345151031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 345151031 is about 18578.2407940042. The cubic root of 345151031 is about 701.4602381401.

The spelling of 345151031 in words is "three hundred forty-five million, one hundred fifty-one thousand, thirty-one".