145050139 has 8 divisors (see below), whose sum is σ = 156833712. Its totient is φ = 133356000.

The previous prime is 145050119. The next prime is 145050149. The reversal of 145050139 is 931050541.

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 145050139 - 2⁵ = 145050107 is a prime.

It is a super-3 number, since 3×145050139³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145050119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18964 + ... + 25489.

It is an arithmetic number, because the mean of its divisors is an integer number (19604214).

Almost surely, 2^145050139 is an apocalyptic number.

145050139 is a deficient number, since it is larger than the sum of its proper divisors (11783573).

145050139 is a wasteful number, since it uses less digits than its factorization.

145050139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44717.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 145050139 is about 12043.6763075068. The cubic root of 145050139 is about 525.4193342118.

The spelling of 145050139 in words is "one hundred forty-five million, fifty thousand, one hundred thirty-nine".