145541314542 has 64 divisors (see below), whose sum is σ = 318359188224. Its totient is φ = 44084874240.

The previous prime is 145541314489. The next prime is 145541314547. The reversal of 145541314542 is 245413145541.

It is a super-2 number, since 2×145541314542² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 145541314542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145541314547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8860317 + ... + 8876727.

It is an arithmetic number, because the mean of its divisors is an integer number (4974362316).

Almost surely, 2^145541314542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145541314542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159179594112).

145541314542 is an abundant number, since it is smaller than the sum of its proper divisors (172817873682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145541314542 is a wasteful number, since it uses less digits than its factorization.

145541314542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18193.

The product of its digits is 192000, while the sum is 39.

The spelling of 145541314542 in words is "one hundred forty-five billion, five hundred forty-one million, three hundred fourteen thousand, five hundred forty-two".