1545225511031 has 2 divisors, whose sum is σ = 1545225511032. Its totient is φ = 1545225511030.

The previous prime is 1545225511021. The next prime is 1545225511111. The reversal of 1545225511031 is 1301155225451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1545225511031 - 2⁶ = 1545225510967 is a prime.

It is a super-2 number, since 2×1545225511031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1545225510982 and 1545225511000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1545225511021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 772612755515 + 772612755516.

It is an arithmetic number, because the mean of its divisors is an integer number (772612755516).

Almost surely, 2^{1545225511031} is an apocalyptic number.

1545225511031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1545225511031 is an equidigital number, since it uses as much as digits as its factorization.

1545225511031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30000, while the sum is 35.

The spelling of 1545225511031 in words is "one trillion, five hundred forty-five billion, two hundred twenty-five million, five hundred eleven thousand, thirty-one".