145245055224542 has 64 divisors (see below), whose sum is σ = 276893538238464. Its totient is φ = 55586160731520.

The previous prime is 145245055224523. The next prime is 145245055224547. The reversal of 145245055224542 is 245422550542541.

It is a super-2 number, since 2×145245055224542² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145245055224547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11178683 + ... + 20382665.

It is an arithmetic number, because the mean of its divisors is an integer number (4326461534976).

Almost surely, 2^{145245055224542} is an apocalyptic number.

145245055224542 is a deficient number, since it is larger than the sum of its proper divisors (131648483013922).

145245055224542 is a wasteful number, since it uses less digits than its factorization.

145245055224542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9206833.

The product of its (nonzero) digits is 12800000, while the sum is 50.

The spelling of 145245055224542 in words is "one hundred forty-five trillion, two hundred forty-five billion, fifty-five million, two hundred twenty-four thousand, five hundred forty-two".