145541138415 has 16 divisors (see below), whose sum is σ = 232896283776. Its totient is φ = 77611786400.

The previous prime is 145541138411. The next prime is 145541138437. The reversal of 145541138415 is 514831145541.

It is not a de Polignac number, because 145541138415 - 2² = 145541138411 is a prime.

It is a super-2 number, since 2×145541138415² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145541138411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515421 + ... + 746150.

It is an arithmetic number, because the mean of its divisors is an integer number (14556017736).

Almost surely, 2^145541138415 is an apocalyptic number.

145541138415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145541138415 is a deficient number, since it is larger than the sum of its proper divisors (87355145361).

145541138415 is a wasteful number, since it uses less digits than its factorization.

145541138415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269270.

The product of its digits is 192000, while the sum is 42.

The spelling of 145541138415 in words is "one hundred forty-five billion, five hundred forty-one million, one hundred thirty-eight thousand, four hundred fifteen".