145402161331 has 16 divisors (see below), whose sum is σ = 171794810880. Its totient is φ = 120426949440.

The previous prime is 145402161319. The next prime is 145402161337. The reversal of 145402161331 is 133161204541.

145402161331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145402161331 - 2³⁵ = 111042422963 is a prime.

It is a super-2 number, since 2×145402161331² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 145402161293 and 145402161302.

It is not an unprimeable number, because it can be changed into a prime (145402161337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365386 + ... + 651391.

It is an arithmetic number, because the mean of its divisors is an integer number (10737175680).

Almost surely, 2^145402161331 is an apocalyptic number.

145402161331 is a deficient number, since it is larger than the sum of its proper divisors (26392649549).

145402161331 is a wasteful number, since it uses less digits than its factorization.

145402161331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017474.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 145402161331 its reverse (133161204541), we get a palindrome (278563365872).

The spelling of 145402161331 in words is "one hundred forty-five billion, four hundred two million, one hundred sixty-one thousand, three hundred thirty-one".