145403630442507 has 16 divisors (see below), whose sum is σ = 194433363793152. Its totient is φ = 96654834410400.

The previous prime is 145403630442449. The next prime is 145403630442571. The reversal of 145403630442507 is 705244036304541.

It is a de Polignac number, because none of the positive numbers 2^k-145403630442507 is a prime.

It is a super-2 number, since 2×145403630442507² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145403630440507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65032257 + ... + 67230957.

It is an arithmetic number, because the mean of its divisors is an integer number (12152085237072).

Almost surely, 2^{145403630442507} is an apocalyptic number.

145403630442507 is a deficient number, since it is larger than the sum of its proper divisors (49029733350645).

145403630442507 is a wasteful number, since it uses less digits than its factorization.

145403630442507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262578.

The product of its (nonzero) digits is 4838400, while the sum is 48.

The spelling of 145403630442507 in words is "one hundred forty-five trillion, four hundred three billion, six hundred thirty million, four hundred forty-two thousand, five hundred seven".