145337725477 has 8 divisors (see below), whose sum is σ = 166112600256. Its totient is φ = 124565936352.

The previous prime is 145337725369. The next prime is 145337725501. The reversal of 145337725477 is 774527733541.

It is a happy number.

145337725477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145337725477 - 2¹⁹ = 145337201189 is a prime.

It is a super-2 number, since 2×145337725477² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145337725277) 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 7 ways as a sum of consecutive naturals, for example, 669583 + ... + 859660.

It is an arithmetic number, because the mean of its divisors is an integer number (20764075032).

Almost surely, 2^145337725477 is an apocalyptic number.

It is an amenable number.

145337725477 is a deficient number, since it is larger than the sum of its proper divisors (20774874779).

145337725477 is a wasteful number, since it uses less digits than its factorization.

145337725477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542827.

The product of its digits is 17287200, while the sum is 55.

The spelling of 145337725477 in words is "one hundred forty-five billion, three hundred thirty-seven million, seven hundred twenty-five thousand, four hundred seventy-seven".