145522545 has 16 divisors (see below), whose sum is σ = 266098560. Its totient is φ = 66524544.

The previous prime is 145522543. The next prime is 145522547. The reversal of 145522545 is 545225541.

It is an interprime number because it is at equal distance from previous prime (145522543) and next prime (145522547).

It is not a de Polignac number, because 145522545 - 2¹ = 145522543 is a prime.

It is a super-2 number, since 2×145522545² = 42353622206554050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145522543) 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, 692860 + ... + 693069.

It is an arithmetic number, because the mean of its divisors is an integer number (16631160).

Almost surely, 2^145522545 is an apocalyptic number.

145522545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145522545 is a deficient number, since it is larger than the sum of its proper divisors (120576015).

145522545 is a wasteful number, since it uses less digits than its factorization.

145522545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385944.

The product of its digits is 40000, while the sum is 33.

The square root of 145522545 is about 12063.2725659333. The cubic root of 145522545 is about 525.9891194191.

The spelling of 145522545 in words is "one hundred forty-five million, five hundred twenty-two thousand, five hundred forty-five".