145621022403 has 8 divisors (see below), whose sum is σ = 204380382400. Its totient is φ = 91971172008.

The previous prime is 145621022389. The next prime is 145621022461. The reversal of 145621022403 is 304220126541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145621022403 - 2¹⁷ = 145620891331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145621022473) 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, 1277377333 + ... + 1277377446.

It is an arithmetic number, because the mean of its divisors is an integer number (25547547800).

Almost surely, 2^145621022403 is an apocalyptic number.

145621022403 is a deficient number, since it is larger than the sum of its proper divisors (58759359997).

145621022403 is a wasteful number, since it uses less digits than its factorization.

145621022403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2554754801.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 145621022403 its reverse (304220126541), we get a palindrome (449841148944).

The spelling of 145621022403 in words is "one hundred forty-five billion, six hundred twenty-one million, twenty-two thousand, four hundred three".