1554150541 has 4 divisors (see below), whose sum is σ = 1556737084. Its totient is φ = 1551564000.

The previous prime is 1554150539. The next prime is 1554150593. The reversal of 1554150541 is 1450514551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1214522500 + 339628041 = 34850^2 + 18429^2 .

It is a cyclic number.

It is not a de Polignac number, because 1554150541 - 2¹ = 1554150539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1554120541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1292370 + ... + 1293571.

It is an arithmetic number, because the mean of its divisors is an integer number (389184271).

Almost surely, 2^1554150541 is an apocalyptic number.

It is an amenable number.

1554150541 is a deficient number, since it is larger than the sum of its proper divisors (2586543).

1554150541 is an equidigital number, since it uses as much as digits as its factorization.

1554150541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586542.

The product of its (nonzero) digits is 10000, while the sum is 31.

The square root of 1554150541 is about 39422.7160530575. The cubic root of 1554150541 is about 1158.3265954970.

The spelling of 1554150541 in words is "one billion, five hundred fifty-four million, one hundred fifty thousand, five hundred forty-one".