145355738 has 32 divisors (see below), whose sum is σ = 256227840. Its totient is φ = 61130160.

The previous prime is 145355731. The next prime is 145355747. The reversal of 145355738 is 837553541.

It is a super-2 number, since 2×145355738² = 42256581139049288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145355695 and 145355704.

It is not an unprimeable number, because it can be changed into a prime (145355731) 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, 13931 + ... + 22017.

It is an arithmetic number, because the mean of its divisors is an integer number (8007120).

Almost surely, 2^145355738 is an apocalyptic number.

145355738 is a deficient number, since it is larger than the sum of its proper divisors (110872102).

145355738 is a wasteful number, since it uses less digits than its factorization.

145355738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8162.

The product of its digits is 252000, while the sum is 41.

The square root of 145355738 is about 12056.3567465466. The cubic root of 145355738 is about 525.7880687566.

The spelling of 145355738 in words is "one hundred forty-five million, three hundred fifty-five thousand, seven hundred thirty-eight".