145890002245 has 16 divisors (see below), whose sum is σ = 188545940352. Its totient is φ = 107727773760.

The previous prime is 145890002243. The next prime is 145890002261. The reversal of 145890002245 is 542200098541.

It is a happy number.

It is not a de Polignac number, because 145890002245 - 2¹ = 145890002243 is a prime.

It is a super-2 number, since 2×145890002245² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145890002198 and 145890002207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145890002243) 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, 1233240 + ... + 1346350.

It is an arithmetic number, because the mean of its divisors is an integer number (11784121272).

Almost surely, 2^145890002245 is an apocalyptic number.

It is an amenable number.

145890002245 is a deficient number, since it is larger than the sum of its proper divisors (42655938107).

145890002245 is a wasteful number, since it uses less digits than its factorization.

145890002245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132972.

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 145890002245 in words is "one hundred forty-five billion, eight hundred ninety million, two thousand, two hundred forty-five".