145021098 has 16 divisors (see below), whose sum is σ = 294372000. Its totient is φ = 47618736.

The previous prime is 145021081. The next prime is 145021099. The reversal of 145021098 is 890120541.

It is a happy number.

It is a super-2 number, since 2×145021098² = 42062237730251208, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145021099) 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, 179973 + ... + 180776.

It is an arithmetic number, because the mean of its divisors is an integer number (18398250).

Almost surely, 2^145021098 is an apocalyptic number.

145021098 is an abundant number, since it is smaller than the sum of its proper divisors (149350902).

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

145021098 is a wasteful number, since it uses less digits than its factorization.

145021098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360821.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 145021098 is about 12042.4705936946. The cubic root of 145021098 is about 525.3842665186.

The spelling of 145021098 in words is "one hundred forty-five million, twenty-one thousand, ninety-eight".