145987050409 has 8 divisors (see below), whose sum is σ = 155102738760. Its totient is φ = 137143472256.

The previous prime is 145987050383. The next prime is 145987050431. The reversal of 145987050409 is 904050789541.

It can be written as a sum of positive squares in 4 ways, for example, as 77633562384 + 68353488025 = 278628^2 + 261445^2 .

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 145987050409 - 2¹³ = 145987042217 is a prime.

It is a super-3 number, since 3×145987050409³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145987050439) 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, 68026444 + ... + 68028589.

It is an arithmetic number, because the mean of its divisors is an integer number (19387842345).

Almost surely, 2^145987050409 is an apocalyptic number.

It is an amenable number.

145987050409 is a deficient number, since it is larger than the sum of its proper divisors (9115688351).

145987050409 is a wasteful number, since it uses less digits than its factorization.

145987050409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136055099.

The product of its (nonzero) digits is 1814400, while the sum is 52.

The spelling of 145987050409 in words is "one hundred forty-five billion, nine hundred eighty-seven million, fifty thousand, four hundred nine".